I just received two 6s8400mah packs from austin, and I must say they are the best constructed packs I've ever seen ( and I've seen a lot, I currently own 4 10s2p prolites packs, and have had many many other large packs, from different brands). For my use, I didn't need 6s packs, so i opened the pack to check the inside out, and do some rewiring. His packs are wonderful, and I'm kicking myself that all my money spent on lipos have not been with him. They look great, and their build super well, and I hope they perform as well as they look!